A model for dark matter, naturalness and a complete gauge unification

TL;DR

This paper proposes a minimal extension of the Standard Model that unifies gauge couplings, explains dark matter as a stable neutral particle, and predicts testable signals in future experiments.

Contribution

It introduces a model combining dynamical electroweak symmetry breaking with gauge unification and dark matter, providing concrete predictions and constraints.

Findings

Unification scale at ~2.2 x 10^{15} GeV with coupling ~0.0304

Dark matter candidate mass range 30-800 GeV

Most parameter space testable by upcoming experiments

Abstract

We consider dark matter in a minimal extension of the Standard Model (SM) which breaks electroweak symmetry dynamically and leads to a complete unification of the SM and technicolor coupling constants. The unification scale is determined to be $M_{\rm U} \approx 2.2 \times 10^{15}$ GeV and the unified coupling $\alpha_{\rm U} \approx 0.0304$. Moreover, unification strongly suggest that the technicolor sector of the model must become strong at the scale of ${\cal O}$(TeV). The model also contains a tightly constrained sector of mixing neutral fields stabilized by a discrete symmetry. We find the lightest of these states can be DM with a mass in the range $m_{\rm DM} \approx 30-800$ GeV. We find a large set of parameters that satisfy all available constraints from colliders and from dark matter search experiments. However, most of the available parameter space is within the reach of the next generation of DM search experiments. The model is also sensitive to a modest improvement in the measurement of the precision electroweak parameters.